Home / 109,328.20-164,030.70-39,209.80

Finding the Fourth Proportional to 109,328.20, 164,030.70 and 39,209.80

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Solution

The fourth proportional to 109,328.20, 164,030.70 and 39,209.80 is: 58,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,328.20 : 164,030.70 = 39,209.80 : x
  2. Step 2: Convert to fraction form
    109,328.20/164,030.70 = 39,209.80/x
  3. Step 3: Cross multiply
    109,328.20x = 164,030.70 × 39,209.80
  4. Step 4: Simplify right side
    109,328.20x = 6,431,610,940.86
  5. Step 5: Solve for x
    x = 6,431,610,940.86/109,328.20
  6. Step 6: Final answer
    x = 58,828.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.